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题名: Glucose biosensor based on electrodeposition of platinum nanoparticles onto carbon nanotubes and immobilizing enzyme with chitosan-SiO2 sol-gel
作者: Zou, Yongjin1, 2;  Xiang, Cuili1, 2;  Sun, Li-Xian1;  Xu, Fen1
通讯作者: 孙立贤 ;  徐芬
关键词: Pt nanoparticles ;  chitosan-SiO2 sol-gel ;  glucose biosensor ;  multi-walled carbon nanotubes
刊名: BIOSENSORS & BIOELECTRONICS
发表日期: 2008-02-28
DOI: 10.1016/j.bios.2007.10.009
卷: 23, 期:7, 页:1010-1016
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504
产权排名: 1;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biophysics ;  Biotechnology & Applied Microbiology ;  Chemistry, Analytical ;  Electrochemistry ;  Nanoscience & Nanotechnology
研究领域[WOS]: Biophysics ;  Biotechnology & Applied Microbiology ;  Chemistry ;  Electrochemistry ;  Science & Technology - Other Topics
英文摘要: A novel amperometric biosensor, based on electrodeposition of platinum nanoparticles onto multi-walled carbon nanotube (MWNTs) and immobilizing enzyme with chitosan-SiO2 Sol-gel, is presented in this article. MWNTs were cast on the glass carbon (GC) substrate directly. An extra Nafion coating was used to eliminate common interferents such as acetaminophen and ascorbic acids. The morphologies and electrochemical performance of the modified electrodes have been investigated by scanning electron microscopy (SEM) and amperometrie methods, respectively. The synergistic action of Pt and MWNTs and the biocompatibility of chitosan-SiO2 sol-gel made the biosensor have excellent electrocatalytic activity and high stability. The resulting biosensor exhibits good response performance to glucose with a wide linear range from 1 mu M to 23 mM and a low detection limit 1 mu M. The biosensor also shows a short response time (within 5 s), and a high sensitivity (58.9 mu Am M-1 cm(-2)). In addition, effects of pH value, applied potential, rotating rate, electrode construction and electroactive interferents on the amperometric response of the sensor were investigated and discussed in detail. (C) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: OXIDASE ;  LAYER ;  POLYANILINE ;  SENSOR ;  FILMS ;  SIO2
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000253620900013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99977
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Zou, Yongjin,Xiang, Cuili,Sun, Li-Xian,et al. Glucose biosensor based on electrodeposition of platinum nanoparticles onto carbon nanotubes and immobilizing enzyme with chitosan-SiO2 sol-gel[J]. BIOSENSORS & BIOELECTRONICS,2008,23(7):1010-1016.
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